Hello ladies, I'm in dire need of some good advice.

I'm 100 days away from my first triathlon (only sprint distance, but still... a race is a race, right, and we all have to start somewhere). I have never raced in any sports before, so I need to hear from those who have done it before me. What do you wear during a race? From top to toe, during swim, cycle and run - what do I need?